Article L442-8 of the French Commercial code
I.-A contract by which a supplier makes a commitment to any person engaged in production, distribution or service activities on a price offer following remote reverse auctions, organised in particular by electronic means, is void where at least one of the following rules has not been complied with: 1° Prior to the auctions, the purchaser or the person organising them on its behalf shall communicate in a transparent and non-discriminatory…